feat(compare): add face comparison functionality with cosine similarity

ndarray-safetensors/src/lib.rs

@@ -68,6 +68,7 @@ use safetensors::tensor::SafeTensors;
 /// let view = SafeArrayView::from_bytes(&bytes).unwrap();
 /// let tensor: ndarray::ArrayView2<f32> = view.tensor("data").unwrap();
 /// ```
+#[derive(Debug)]
 pub struct SafeArraysView<'a> {
     pub tensors: SafeTensors<'a>,
 }